Add ReferenceCounted base class.
diff --git a/BUILD b/BUILD
index 25daba8..5289023 100644
--- a/BUILD
+++ b/BUILD
@@ -538,6 +538,23 @@
 )
 
 grpc_cc_library(
+    name = "debug_location",
+    public_hdrs = ["src/core/lib/support/debug_location.h"],
+    language = "c++",
+)
+
+grpc_cc_library(
+    name = "reference_counted",
+    srcs = ["src/core/lib/support/reference_counted.cc"],
+    public_hdrs = ["src/core/lib/support/reference_counted.h"],
+    language = "c++",
+    deps = [
+        "grpc_trace",
+        "debug_location",
+    ],
+)
+
+grpc_cc_library(
     name = "grpc_base_c",
     srcs = [
         "src/core/lib/backoff/backoff.cc",